Wave-motor.



No. 703,998. Patented July 8, I902.

E. CHAUUETTE. WAVE moms.

(App1icat ion filed July 27, 1901.)

(l lo Model.) 2 sheets-sheet 45' mums PEI'ERS ca. wmoumo WASHINGTON. u. c.

Patented luly'B, I902. E. CHADUETTE.

WAVE MOTOR.

' (Application med July 2'7, 1901.)

2 Sheets-Sheet 2 I (No Model.)

'n-l: Norms Pmu ca. PHOYOUTHO. wmml'ron. n. c.

' of the piles or posts B, inclosed by the frameapparatus by means of which the lifting power UNITED STATES j EPHRAIEM OHAQUETTE, OF NEW ROCHELLE, NE? YORK.

WAVE-M OTO R.

SPECIFICATION forming part of Letters Patent No. 703,998, dated July 8, 1902.

Application filed July 27,1901.

To (tZZ whom it may concern:

Be it known that I, EPHRAIEM CHAQUETTE, a citizen of the United States,and a resident of New Rochelle,county of Westchester, State of New York,have invented certain new and useful Improvements in Wave-Motors, of which the following is a specification.

The object of my invention is to provide an of waves on the sea-shore is converted into the constant rotation of a power-shaft. To accomplish this obj ect,I employ a suitable float and a specially-constructed pier surrounding a waterway preferably open only at one end, so that the incoming water may bank up to a greater height under" the float. I provide means for expandingror contracting the Width of this waterwayiinthe neighborhood of the float to accommodate it to the varying force of the sea, and I provide novel means for utilizing both the up and down motion of the float and converting such motion into arotation constantly in one direction.

One form of my invention is shown in the accompanying drawings, in which Figure 1 is a top plan. Fig. 2 is a vertical longitudinal section. Fig. 3 is an enlarged detail of the converting mechanism.

Same letters indicate similar parts in the difierent figures.

A is the pier or bulkhead formed by means work a a, so as to leave a waterway C, inclosed on all sides except at the mouth D, which is preferably flaring. The piles B are preferably made as hollow iron tubes filled with cement, this constituting a substantial and permanent structure.

E is a fioat hung at the outer end of the frame F, the inner end of which is keyed to a rock-shaft b, journaled in the framework of the pier, as shown at c c. As the water in the waterway rises it lifts the float e, and this rocks the shaft b in one direction, while the falling of the float as the water recedes rocks the shaft in the other direction. To quicken the rise and fall of the float when the Wave motion is slight, revolving gates G are provided, by which the passage at the sides of the float may be diminished or enlarged, as occasion requires. These gates consist of somewhat -semicylindrical structures conjournaled in the framework of the pier.

which form a part of the pier A.

nected by the bar d and revolubly mounted at each side of the waterway, so that when in the position shown .in Fig. 1 they offer no in1- pediment to theflow of water therein. By turning these gates so that'their rounded surfaceprojectsiintothe waterway the width of the latter is diminished as desired, thus banking up the water under the float and causing it to rise and descend more quickly. The turning of the gates is brought about as follows: The bar 01 carries two worms d d and is journaled in the boxes 6 e, mounted on the pier. This bar is turned by the hand-wheel f or by connection (not shown) with any convenient source of power. The worms d d engage, respectively, with the worm -gears d d mounted on the shafts on which the gates G G are mounted.

The rock-shaft 12 carries the sector-rack II, the teeth of which mesh with acorresponding sector H, mounted upon the lifting-shaft Z), The sector H is provided with an arm f, the outer lifting-rack J. The motor-rack, as shown in the enlarged detail in Fig. 3, slides on the ver tical tracks h, secured to the frame or posts 7;, The rack is provided with the teeth 1 Z, those on one side engaging'with the toothed gear K and those on the other side with the toothed gear K.

These gears are loose upon the shaft m, journaled in the framework of the pier, and are both revolved by the up-and-down motion of the rack. The shaft m carries two clutchgears L L, so set that one of them lies idle during the downward movement of the rack,

but is picked up by the'dog it during the up .ward motion of the rack, and thus communicates the rotation of the corresponding gears K or K- to the shaft m.

The dog on the other clutch-pulley is so set that the reverse of this takes place, the pulley being idle during the upper motion of the rack and operative during the downward motion. Bythi's means every motion of the rack J, either up or down, is utilized to rotate the shaft m always in the same direction. The relations and proportions of the two racks, sectors H and II, and the motor-rack J are such that the least rise or-fall of the float E will turn the shaftm by at least one tooth of the gear K K. My apend of which is attached by the link g to the transmitting its rotation to any mechanism paratus therefore avoids the difficulty usual in wave-motors that there should not be sufficient throw to produce continuous operation. The shaft m becomes the power-shaft and car- 'ries the pulley P or other suitable device for which it may be desired to operate.

The operation of my Wave-motor is as follows: An inrushing wave enters the waterway 0 through the flaring mouthD and lifts the float E to a height corresponding to the depth of the water admitted. The rising of the float rocks the shaft 1), and the sector H moves upward accordingly. The sector H, meshing therewithnnoves upward,thus depressing the arm f, link g, and rack J. This downward motion of the rack turns the loose gears K K, of which one, K, turns from, while the other, K, with the aid of the dog 'n, clutches the pulley L and turns the shaft m, on which it is mounted. As soon as the Water begins to recede the float E begins to fall, rocking the shaft b the other way, which produces an upper motion of the motor-rack J. The gear K is now idle; but the gear K operates the clutchvoaeee pulley L, thus continuing the rotation of the shaft on in the same direction.

I claim-- 1. A wave-motor which consists of piers inclosing a waterway on three sides, a pair of water-gates situated therein and adapted to control said waterway in the vicinity of the float; and a float set in said waterwayand mechanism connected therewith whereby the rising and falling of the float is converted into a continuous rotation of a power-shaft.

2. A wave-motor which is provided with a pair of water-gates of somewhat-semicylin drical character connected together for simul taneous operation and situated in the waterway in such manner that when turned in one position they tend to choke the waterway and bank up the water therein and when turned into the opposite position, offer no impediment to the flow of water through said waterway.

EPHRAIEM CI-IAQUETTE. Witnesses:

W. P. PREBLE, J r., RAE BATTERSBY. 

